Quantum Sequencer

This is my favourite iOS sequencer. It will run all my iOS synths and also hardware synths. It is comprehensive and a little bit of time spent on YouTube (The developers own channel or The Sound Test Rooms tutorial) and with the manual are worth it. It is a step sequencer, not a piano roll. I love it and I have purchased a few others over the years, but always come back to Quantum. I learn something new, every time I do.

Great stuff, so deep. UI update in the works if you don’t like the interface. A MIDI essential.

Update May 2023 Can you please answer this question. QUESTION: How can we sustain a note instead of playing note to note. I’ve sent emails and asked over a year ago. Now your email doesn’t work. ======== I think this is a fantastic app for compositions. I can’t figure out, though, how to sustain a note. Is this possible? If not, can you add this feature.

I haven’t found an end to what this can do

This review is just a rough recording of my experience with the apps, devices or combination(s) of devices & apps mentioned, made mostly without any technical knowledge of them. It would seem that because the QUANTUM iOS MIDI sequencer does not by itself emit audio and therefore does not advertise itself as an audio source to the AUDIOBUS device (AU or APP) list, it is not detectable (or not recognized OR BOTH) BY AUDIOBUS as an audio source and where AUDIOBUS only makes the device currently generating the i/o data of a sequence rather than its audio emitting recipient (MIDI slave synthesizer etc.) available as an audio source it is impossible to route audio from instruments sequenced with QUANTUM iOS MIDI sequencer to recording, looping, sampling apps or built-in sound library recorders (AudioShare, AudioCopy, Flip, AUM, GarageBand, Xequence) WITH AUDIOBUS internally in iOS. This is of course a non-issue if you plan to work with external devices to record, sample or just amplify audio generated by instruments sequenced with QUANTUM iOS MIDI sequencer. Independent of this, Quantum is AMAZING. The device has far more options, features and flexibility than I MYSELF will ever need in an iOS device, but it would be idiotic to cite that as a negative! Especially fun for note by note, parameter-locking or “vertical,” tracker-style sequencing. Well worth the investment of time and revenue but I would recommend primarily as an iPad app. In fact, evaluate it using an iPad before passing final judgment. 🥹📻💪🏽💪🏼💪🏻😮‍💨👂🧠🙄📡😠🕹🤔🤯😫⌚️⌚️⌚️🤩🤩🤩🥳🥳🥳

Its fun for sequencing other ipad apps but I was really hoping it would also work with an OSX MIDI Network Session like ALL my other midi apps do. BUT IT DOESNT (crying) It has so much potential too! Ughhhhhh.... Dying Its basically useless to me as its unable to touch hardware synths and VSTs via my Mac as I'd hoped. :( Devs PLEEEEEEEASE fix!

This app is bananas... so deep and flexible. My only wish is for AUM support.

This is insanely good, with so many features that are just hiding in there waiting for you to understand. When I find a lil feature it makes me happy that this app dev digs the old school ways. It is way more than I thought at first.

Doesn’t sync properly. Not user friendly. Too much menu diving.

Among the most powerful step sequencers ever made. Only downside is it accounts for 70 percent of my battery use if I forget and leave it open, even if the clock isn’t running.